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Linear AlgebraHardVector Spaces & Bases

Vector Spaces & Bases · Hard problem

What is the dimension of the span of the vectors (2,−1,0,1)(2, -1, 0, 1), (0,−2,0,−1)(0, -2, 0, -1), (4,−1,0,−1)(4, -1, 0, -1) in R4\mathbb{R}^{4}?